Lab Quiz: Heart Anatomy and Electrocardiography

Question 1

What is structure 22?

Answer 1

Apex

Question 2

What is the strucuture located underneath the great veins?

Answer 2

The Base of the Heart

Question 3

What is Structure 14?

Answer 3

Auricle of the Right Atrium

Question 4

What is structure 16?

Answer 4

Auricle of the Left Atrium

Question 5

What is structure 7?

Answer 5

Ligamentum Arteriosum

Question 6

What is structure 12?

Answer 6

Left Atrium

Question 7

What is structure 4?

Answer 7

Right Atrium

Question 8

What is structure 7?

Answer 8

Right Ventricle

Question 9

What is structure 15?

Answer 9

Left Ventricle

Question 10

What is structure 1?

Answer 10

Superior Vena Cava

Question 11

What is structure 8?

Answer 11

Pulmonary Trunk

Question 12

What is structure 8?

Answer 12

Aorta

Question 13

What is structure 1?

Answer 13

Brachiocephalic trunk

Question 14

What is underneath structure 5?

Answer 14

Posterior interventricular sulcus

Question 15

What is underneath structure 4?

Answer 15

Coronary Sulcus

Question 16

What is underneath structure 18?

Answer 16

Anterior Interventriculuar Sulcus

Question 17

What is the indentation in the right atrium called?

Answer 17

Fossa Ovalis

Question 18

What are the muscles inside of the atria called?

Answer 18

Pectinate Muscles

Question 19

What is structure 16?

Answer 19

Interventricular septum

Question 20

What is structure 7?

Answer 20

Papillary Muscles

Question 21

What are the muscles called that are lining the ventricles?

Answer 21

Trabeculae Carnae

Question 22

What are the ends of the AV pumps called?

Answer 22

Chordae Tendineae

Question 23

What is structure 3?

Answer 23

Pulmonary SL Pump

Question 24

What is structure 13?

Answer 24

Aortic Valve

Question 25

What is structure 6?

Answer 25

Tricuspid Valve

Question 26

What is structure 14?

Answer 26

Bicuspid/Mitrial Valve

Question 27

Where do the electrical impulses start?

Answer 27

In the Sinoatrial node.

Question 28

Where do Electrical impulses go after they reach the sinoatrial node?

Answer 28

Atrioventricular node

Question 29

Where do the impulses pause?

Answer 29

At the atrioventricular node.

Question 30

The bundles of His are located where?

Answer 30

Introventricular septum

Question 31

What is the subendocardial conducting network made of?

Answer 31

Purkinje fibers

Question 32

What is structure 6?

Answer 32

P wave

Question 33

What is interval 4?

Answer 33

QRS Complex

Question 34

What is structure 9?

Answer 34

T wave

Question 35

What happens before the P wave?

Answer 35

SA node generates impulse, atrial depolarization begins.

Question 36

What happens on the P wave?

Answer 36

Impulse is delayed at the AV node. Atrial depolarization complete.

Question 37

What happens during the Q wave?

Answer 37

Impulse passes to apex, ventricular depolarization begins.

Question 38

What happens during the QRS complex?

Answer 38

Ventricular depolarization complete, impulse continues into Purkinje fibers.

Question 39

What is an ECG?

Answer 39

An ECG shows a record of voltage and time through the heart. It shows the electrical impulse through the non-contractile cells.